Senior Machine Learning Engineer

Join Unity, a leader in real-time 3D development, as a Senior Machine Learning Engineer. In this role, you will lead the development of foundational AI systems within the Unity engine, enabling creators to build smarter, more responsive in-game agents and simulations. You will design, implement, and scale AI agent systems, develop reusable agentic frameworks, and integrate machine learning models within real-time game engine constraints. You will also collaborate with internal and external teams, contribute to the long-term vision for Unity's agentic AI offerings, and mentor engineers and researchers.

• Design, implement, and scale AI agent systems in Unity environments that enable goal-directed behavior, task planning and execution, and environment-aware decision-making.
• Develop reusable agentic frameworks - such as planning modules, memory systems or policy adaptation layers - that creators can extend in their own projects.
• Lead high-impact initiatives, including hierarchical reinforcement learning for scalable behaviors, AI planning and goal inference frameworks for NPCs and simulations.

• This role is perfect for someone passionate about pushing the boundaries of AI, multi-agent systems, reinforcement learning, and intelligent decision-making in complex, real-time environments
• Advanced degree (MS or Ph.D.) in Computer Science, Machine Learning, Robotics, or a related field—or equivalent practical experience
• 5+ years of hands-on experience developing ML systems in production, ideally within real-time or interactive environments
• Strong background in one or more of the following: reinforcement learning, fine-tuning, decision-making under uncertainty, AI planning, or multi-agent systems